The first landing on the moon took place on 20 July 1969 and the last one in December 1972. The first human to step on the surface of the Moon was Neil Armstrong (21 June 1969), the second one - Edvin Oldrin. The third member of the crew Michael Collins remained in the space ship. The USSR answered with sending two self-walking radio-controlled machines to the Moon: "Lunokhod-1" in November 1970 and "Lunokhod-2" in January 1973.